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http://dx.doi.org/10.4283/JKMS.2010.20.5.187

Studies on Crystallographic and Magnetic Properties of the Sn0.9957Fe0.01O2  

Li, Yong-Hui (Department of Physics, Kookmin University)
Kim, Sam-Jin (Department of Physics, Kookmin University)
Kim, Chul-Sung (Department of Physics, Kookmin University)
Abstract
$Sn_{0.99}{^{57}Fe}_{0.01}O_2$ prepared by a sol-gel method, and studied by x-ray diffractometer, vibrating magnetometer, Superconducting quantum interference devices and M$\ddot{o}$ssbauer spectroscopy. the crystal structure were found to be a rutile tetragonal structure with space group $P4_2$/mnm, and oxygen deficiency are 5.6 % by Rietveld refinement. magnetization value were $M_s=1.95{\times}10^{-2}{\mu}_B/Fe$ at room temperature, and Curri-weiss temperature were and ${\theta}_{cw}$ = 18 k, measurement of VSM and SQUID, respectively. Mssbauer spectra of $Sn_{0.99}{^{57}Fe}_{0.01}O_2$ have been Sextet taken at various temperatures ranging from 4.2 K to RT, and isomer shift value $\delta$ = 0.18~0.36 mm/s of $^{57}Fe$ ion site all of the temperature range the state shows ferric.
Keywords
$Sn^{0.99}{^{57}Fe}_{0.01}O_2$; M$\ddot{o}$ssbauer spectroscopy; ferromagnetic;
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